結果

問題 No.321 (P,Q)-サンタと街の子供たち
ユーザー 紙ぺーぱー紙ぺーぱー
提出日時 2015-12-14 01:12:45
言語 C#(csc)
(csc 3.9.0)
結果
RE  
実行時間 -
コード長 6,221 bytes
コンパイル時間 3,105 ms
コンパイル使用メモリ 110,720 KB
実行使用メモリ 27,392 KB
最終ジャッジ日時 2024-09-15 12:01:18
合計ジャッジ時間 13,369 ms
ジャッジサーバーID
（参考情報） 		judge4 / judge2
このコードへのチャレンジ
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テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 AC 115 ms
27,136 KB
testcase_01 AC 116 ms
27,264 KB
testcase_02 AC 115 ms
27,008 KB
testcase_03 AC 116 ms
27,136 KB
testcase_04 AC 114 ms
27,264 KB
testcase_05 RE -
testcase_06 AC 116 ms
27,008 KB
testcase_07 AC 115 ms
27,392 KB
testcase_08 AC 114 ms
27,136 KB
testcase_09 AC 113 ms
27,136 KB
testcase_10 AC 115 ms
27,008 KB
testcase_11 AC 115 ms
26,880 KB
testcase_12 AC 115 ms
27,008 KB
testcase_13 AC 115 ms
27,008 KB
testcase_14 AC 416 ms
27,392 KB
testcase_15 AC 146 ms
26,880 KB
testcase_16 AC 279 ms
27,392 KB
testcase_17 AC 115 ms
27,264 KB
testcase_18 AC 310 ms
27,264 KB
testcase_19 AC 397 ms
26,880 KB
testcase_20 AC 511 ms
27,136 KB
testcase_21 AC 309 ms
27,392 KB
testcase_22 AC 186 ms
27,136 KB
testcase_23 AC 143 ms
27,008 KB
testcase_24 AC 193 ms
27,136 KB
testcase_25 AC 338 ms
27,264 KB
testcase_26 AC 506 ms
27,136 KB
testcase_27 AC 425 ms
27,136 KB
testcase_28 AC 358 ms
27,008 KB
testcase_29 AC 144 ms
26,880 KB
testcase_30 AC 115 ms
27,264 KB
testcase_31 AC 117 ms
27,264 KB
testcase_32 AC 128 ms
27,136 KB
testcase_33 AC 327 ms
27,264 KB
testcase_34 AC 241 ms
27,136 KB
testcase_35 AC 372 ms
27,008 KB
testcase_36 AC 125 ms
27,136 KB
testcase_37 AC 333 ms
27,264 KB
testcase_38 AC 292 ms
27,264 KB
testcase_39 AC 161 ms
27,136 KB
testcase_40 AC 455 ms
27,136 KB
testcase_41 AC 193 ms
27,136 KB
testcase_42 AC 447 ms
27,136 KB
testcase_43 AC 260 ms
27,136 KB
testcase_44 AC 424 ms
27,136 KB
権限があれば一括ダウンロードができます
コンパイルメッセージ
Microsoft (R) Visual C# Compiler version 3.9.0-6.21124.20 (db94f4cc)
Copyright (C) Microsoft Corporation. All rights reserved.

ソースコード

diff # 

using System;
using System.Linq;
using System.Diagnostics;
using System.Collections.Generic;
using Debug = System.Diagnostics.Debug;
using StringBuilder = System.Text.StringBuilder;
using System.Numerics;
using Number = System.Int64;
namespace Program
{

    public class Solver
    {
        public void Solve()
        {
            var p = sc.Integer();
            var q = sc.Integer();
            var n = sc.Integer();
            var dx = new int[] { p, p, q, q, -p, -p, -q, -q };
            var dy = new int[] { q, -q, p, -p, q, -q, p, -p };
            var gcd = MathEx.GCD(p, q);
            var ans = 0;
            var DX = new long[1 << 8];
            var DY = new long[1 << 8];
            for (int i = 0; i < 1 << 8; i++)
            {
                for (int j = 0; j < 8; j++)
                {
                    if ((i >> j & 1) == 1) { DX[i] += dx[j]; DY[i] += dy[j]; }
                }
            }
            for (int i = 0; i < n; i++)
            {
                var u = sc.Integer();
                var v = sc.Integer();
                if (gcd == 0 && u == 0 && v == 0)
                {
                    ans++; continue;
                }
                for (int j = 0; j < 1 << 8; j++)
                {

                    if (f(u + DX[j], gcd) && f(v + DY[j], gcd))
                    {
                        Debug.WriteLine("{0} {1}", u, v);

                        ans++; break;
                    }
                }
            }
            IO.Printer.Out.WriteLine(ans);
        }
        public bool f(long v, long gcd)
        {
            v = Math.Abs(v);
            if (v % (gcd * 2) != 0) return false;
            return true;
        }

        public IO.StreamScanner sc = new IO.StreamScanner(Console.OpenStandardInput());
        static T[] Enumerate<T>(int n, Func<int, T> f) { var a = new T[n]; for (int i = 0; i < n; ++i) a[i] = f(i); return a; }
        static public void Swap<T>(ref T a, ref T b) { var tmp = a; a = b; b = tmp; }
    }
}

#region main
static class Ex
{
    static public string AsString(this IEnumerable<char> ie) { return new string(System.Linq.Enumerable.ToArray(ie)); }
    static public string AsJoinedString<T>(this IEnumerable<T> ie, string st = " ") { return string.Join(st, ie); }
    static public void Main()
    {
        Debug.Listeners.Add(new TextWriterTraceListener(Program.IO.Printer.Out));
        var solver = new Program.Solver();
        solver.Solve();
        Program.IO.Printer.Out.Flush();
    }
}
#endregion
#region Ex
namespace Program.IO
{
    using System.IO;
    using System.Text;
    using System.Globalization;
    public class Printer : StreamWriter
    {
        static Printer() { Out = new Printer(Console.OpenStandardOutput()) { AutoFlush = false }; }
        public static Printer Out { get; set; }
        public override IFormatProvider FormatProvider { get { return CultureInfo.InvariantCulture; } }
        public Printer(System.IO.Stream stream) : base(stream, new UTF8Encoding(false, true)) { }
        public Printer(System.IO.Stream stream, Encoding encoding) : base(stream, encoding) { }
        public void Write<T>(string format, T[] source) { base.Write(format, source.OfType<object>().ToArray()); }
        public void WriteLine<T>(string format, T[] source) { base.WriteLine(format, source.OfType<object>().ToArray()); }
    }
    public class StreamScanner
    {
        public StreamScanner(Stream stream) { str = stream; }
        public readonly Stream str;
        private readonly byte[] buf = new byte[1024];
        private int len, ptr;
        public bool isEof = false;
        public bool IsEndOfStream { get { return isEof; } }
        private byte read()
        {
            if (isEof) return 0;
            if (ptr >= len) { ptr = 0; if ((len = str.Read(buf, 0, 1024)) <= 0) { isEof = true; return 0; } }
            return buf[ptr++];
        }
        public char Char() { byte b = 0; do b = read(); while ((b < 33 || 126 < b) && !isEof); return (char)b; }

        public string Scan()
        {
            var sb = new StringBuilder();
            for (var b = Char(); b >= 33 && b <= 126; b = (char)read())
                sb.Append(b);
            return sb.ToString();
        }
        public string ScanLine()
        {
            var sb = new StringBuilder();
            for (var b = Char(); b != '\n'; b = (char)read())
                if (b == 0) break;
                else if (b != '\r') sb.Append(b);
            return sb.ToString();
        }
        public long Long()
        {
            if (isEof) return long.MinValue;
            long ret = 0; byte b = 0; var ng = false;
            do b = read();
            while (b != 0 && b != '-' && (b < '0' || '9' < b));
            if (b == 0) return long.MinValue;
            if (b == '-') { ng = true; b = read(); }
            for (; true; b = read())
            {
                if (b < '0' || '9' < b)
                    return ng ? -ret : ret;
                else ret = ret * 10 + b - '0';
            }
        }
        public int Integer() { return (isEof) ? int.MinValue : (int)Long(); }
        public double Double() { var s = Scan(); return s != "" ? double.Parse(Scan(), CultureInfo.InvariantCulture) : double.NaN; }
        private T[] enumerate<T>(int n, Func<T> f)
        {
            var a = new T[n];
            for (int i = 0; i < n; ++i) a[i] = f();
            return a;
        }

        public char[] Char(int n) { return enumerate(n, Char); }
        public string[] Scan(int n) { return enumerate(n, Scan); }
        public double[] Double(int n) { return enumerate(n, Double); }
        public int[] Integer(int n) { return enumerate(n, Integer); }
        public long[] Long(int n) { return enumerate(n, Long); }
    }
}
#endregion


#region gcd,lcm
static public partial class MathEx
{

    static public Number GCD(Number x, Number y)
    {
        byte i = 0;
        while (x != 0 && y != 0)
        {
            if (i == 0)
                y %= x;
            else x %= y;
            i ^= 1;
        }
        return x == 0 ? y : x;
    }
    static public Number LCM(Number x, Number y)
    {
        return x * y / GCD(x, y);
    }

}
#endregion
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